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10.06.2015

Home » Archive » 2015 » Issue 27: Fault... »

source nfdump [5] tool does this job on an existing Linux server or on a lean virtual machine (VM). A CPU core, 256MB of RAM, and a 2GB hard drive are sufficient for the VM. You can install on Cent

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Understanding the Status of Your Filesystem

18.06.2014

Home » HPC » Articles »

.59 64–128 12,083 3.11 90.70 128–256 8,623 2.22 92.93 256–512 13,437 3.46 96.39 512–1,024 5,456 1

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ClusterHAT

10.07.2017

Home » HPC » Articles »

with the original Raspberry Pi Model A, ranging from two to more than 250 nodes. That early 32-bit system had a single core running at 700MHz with 256MB of memory. You can build a cluster of five RPi3 nodes with 20

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Installing and operating the Graylog SIEM solution

13.12.2018

Home » Archive » 2018 » Issue 48: Secur... »

. The pwgen command generates a password and encrypts with sh256sum: pwgen -N 1 -s 100 echo -n | sha256sum The encrypted password is then assigned to the parameter root_password_sha2. Table 1 gives

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Persistent Memory

14.01.2016

Home » HPC » Articles »

DRAM. At the extreme, you can pretty much buy systems with 1-2TB of memory, but you probably don't buy too many of them because of cost. Typical compute nodes are in the 64-256GB range. Persistent memory

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How persistent memory will change computing

03.12.2015

Home » Archive » 2015 » Issue 30: OpenD... »

than DRAM. At the extreme, you can pretty much buy systems with 1-2TB of memory, but you probably don't buy too many of them because of cost. Typical compute nodes are in the 64-256GB range. Persistent

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Efficiently planning and expanding the capacities of a cloud

02.03.2018

Home » Archive » 2018 » Issue 44: Cloud... »

. Systems like this are usually equipped with 256 or 512GB of RAM. As a result of overcommitting CPU resources, a total of 56 virtual CPU cores are available, of which the provider normally passes 50

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Error-correcting code memory keeps single-bit errors at bay

14.11.2013

Home » Archive » 2013 » Issue 17: Cloud... »

Controller login2$ ls -s /sys/devices/system/edac/mc/mc0 total 0 0 ce_count 0 csrow1 0 csrow4 0 csrow7 0 reset_counters 0 size_mb 0 ce_noinfo_count 0 csrow2 0 csrow5 0 device 0 sdram

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Sharing Data with SSHFS

23.04.2014

Home » HPC » Articles »

on your system. Almost all firewalls allow port 22 access, so you don’t have to configure anything extra, such as NFS or CIFS. You just need one open port on the firewall – port 22. All the other ports can

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Open source mail archiving software compared

09.08.2015

Home » Archive » 2015 » Issue 28: SSD RAID »

Lead Image © Alexander Dedrin, 123RF.com

, confirming the license, and answering the prompt for the Max Heap Size (256MB is fine for test operations). The installation routine automatically launches the main process. You can stop this later, or restart

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